Introduction trial of thirteen new adzuki bean lines in Guangxi

ObjectiveNew lines of adzuki bean that were suitable for planting in Guangxi were selected, in order to provide fine varieties for production of adzuki bean in Guangxi. MethodThirteen new lines of adzuki bean were intro-duced, and tested in two years, so as to evaluate comprehensively their main agronomic traits, yield, resistance, with large-seed variety Jingnong 6 as control(CK). ResultThirteen tested lines showed early or middle mature characteris-tic, growth period was 78.0-83.5 d, plant height ranged from 28.58 to 46.98 cm, nod number and branch number per main stem were 11.5-14.1 and 1.0-2.0, respectively, pod number per plant was 20.5-31.2, pod length was 7.3-9.8 cm, seed number per pod were 6.1-7.7, and 100-seed weight was 12.96-18.19 g. Average dry seed yields of tested lines were 1348.60-1992.79 kg/ha in two years, and dry seed yields of six tested lines were higher than that of CK, especially Jihong 0007-5, Jihong 0004-10 and Pinhong 05203 with increment of above 10.00%, but dry seed yields of other 7 lines were lower than that of CK, especially Bao 200424, Tanghong 2009-73, Suxiaodou 12-1, Long 28-324, Tanghong 0809-1 with decrement of above 10.00%. The tested lines were characterized by erect plant, indehiscent pod, red seed and short cylindrical seed, except Baohong 200624 with yellow seeds and Long 27-096 with long cylindrical seed. And all the tes-ted lines showed good resistance to drought, lodging and bean common mosaic virus(BCMV) disease in two-year trial.ConclusionFour new adzuki bean lines viz., Jihong 0007-5, Jihong 0004-10, Jihong 0001-15 and Tonghong 2 are characterized by high yield, excellent agronomic traits and good resistance, so which are suitable for planting in Nanning, Guangxi and some regions with similar environment.